NO! You don't lol. Read what I said. The third o2 sensor is almost completely useless. Just have the shop weld the pipe in with an o2 bung and out the o2 sensor back where it was. No codes, no problems. You could even take that o2 sensor out altogether, unplug it and you'd never know it except for the check engine light being on. Ask me how I know...

 

Awesome !! Even better hahaha found my weekend project ! Thanks for your help !

 

Say i were hollow out my cat, if i slap the o2 sensor back in i wont get any lights? 97 2500

 

hey j576, living on vancouver island i took my cat off a few years ago, and run 3'pipe with a diesel resonator to a cherry bomb, its a nice rumble, then zip tied the 2nd o2 sensor to the frame, no lights, no mpg loss, so Vancouver is a province thats new to me i thought British Columbia was the province and Vancouver was a city

 

Nope.

 

Lol, either way it's in Canada. And anyone bringing up its illegal in The states is still a dope.

 

thought you'll would like a chuckle

 

It's illegal in canada too.

 

Maybe some of you don't know that there is a Vancouver, Washington. THAT is in the USA. And Vancouver is not a province, it is a city in the province of British Columbia.

With a lack of clear, concise information, you get what you get.

 

Looool legal or illegal the cat is coming off the truck hahaha